M30870T2-CPE User’s Manual
4. Hardware Specifications
REJ10J0766-0400 Rev.4.00 February 16, 2006
4.5 Notes on Using This Product
Notes on using this product are listed below. When debugging the MCU using this product, be careful about the following
precautions.
IMPORTANT
Notes on the Self-check:
If the self-check does not result normally (excluding target status errors), the emulator may be damaged. Then
contact your local distributor.
Run the self-check with the user system not connected.
Note on Quitting the Emulator Debugger:
To restart the emulator debugger, always shut power to the emulator module off once and then on again.
Notes on Clock Supply to the MCU:
A clock supplied to the evaluation MCU is selected by the Emulator tab in the Init dialog box of the emulator
debugger.
(1) When "Internal" is selected:
A clock generated by the oscillator circuit board in the M30870T2-CPE is supplied to the evaluation MCU.
The clock is continually supplied to the evaluation MCU regardless of a status of user system clock and a
status of user program execution.
(2) When "External" is selected:
A clock generated by the oscillator in the user system is supplied. It depends on the status of the oscillation
(on/off) of the user system.
When operating this product with a sub clock, be sure to set the SW2 and SW3 to XCIN and NC, respectively.
Notes on Using the CPU Clock at Less than 10 MHz:
To use the CPU clock at less than 10 MHz, execute the command shown below in the Script Window after
starting the emulator debugger.
[Command]
_settimeout
,600
Once this command is executed, it remains effective the next time you start the emulator debugger. Therefore,
you do not need to execute this command again.
When you use the CPU clock at less than 1 MHz, contact your local distributor.
Notes on Address-Match Interrupts:
Do not single-step an address where an address-match interrupt occurs.
When using an address-match interrupt, do not select the check box of "Enable the Address Match Interrupt
Break Function" in the MCU tab of the Init dialog box. When not using an address-match interrupt, select the
check box.
When you use address-match breaks, if a low reset is input during a user program execution, a debug monitor
program (about 100 cycles) is executed after a reset is released. Take note that it has effects on the user program
execution time and the result of a trace.
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